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Number Families

Number Families. Multiplication and Division problems use the same numbers. These groups of numbers are called number families. 3 5 15. Once you know the numbers in the number family, you’ll be able to memorize all of your multiplication and division problems!.

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Number Families

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  1. Number Families

  2. Multiplication and Division problems use the same numbers. These groups of numbers are called number families. 3 5 15

  3. Once you know the numbers in the number family, you’ll be able to memorize all of your multiplication and division problems!

  4. Here are some number families. Write down four problems that you can make from those numbers in the same family on a piece of paper. The first one has been done for you.

  5. 3 5 15 3x5=15 15÷5=3 5x3=15 15÷3=5

  6. Now it’s your turn! Write your answers on your paper. 3 4 12

  7. 6 7 42

  8. Figure out the missing number in the number family before writing your number sentences. 8 7 ?

  9. 8 ? 72

  10. ? 12 144

  11. Now see if you can write the missing number from each equation. Remember to think about the other numbers in that number family. You will have to work quickly and quietly to finish. Good Luck!

  12. 7x___=42 #1

  13. 9x8=___ #2

  14. __x4=12 #3

  15. 15÷__=3 #4

  16. 108÷9=___ #5

  17. __x3=9 #6

  18. 48÷__=12 #7

  19. 9÷__=9 #8

  20. ___÷9=11 #9

  21. 6x__=42 #10

  22. __x5=30 #11

  23. 40÷__=8 #12

  24. ___÷10=10 #13

  25. 4x__=44 #14

  26. 9x__=36 #15

  27. 54÷9=__ #16

  28. 90÷__=10 #17

  29. 4x__=32 #18

  30. 24÷6=__ #19

  31. 8x__=48 #20

  32. 9x__x4=72 Super Brain Teasers

  33. __x4x5=60 Super Brain Teasers

  34. Now go over your answers with the class and see how you did.Use a calculator to check your answers

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